--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.desktop/unix/native/libawt_xawt/xawt/XToolkit.c Fri Sep 19 09:41:05 2014 -0700
@@ -0,0 +1,1102 @@
+/*
+ * Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xos.h>
+#include <X11/Xatom.h>
+#ifdef __linux__
+#include <execinfo.h>
+#endif
+
+#include <jvm.h>
+#include <jni.h>
+#include <jlong.h>
+#include <jni_util.h>
+
+#include "awt_p.h"
+#include "awt_Component.h"
+#include "awt_MenuComponent.h"
+#include "awt_Font.h"
+#include "awt_util.h"
+
+#include "sun_awt_X11_XToolkit.h"
+#include "java_awt_SystemColor.h"
+#include "java_awt_TrayIcon.h"
+#include <X11/extensions/XTest.h>
+
+#include <unistd.h>
+
+uint32_t awt_NumLockMask = 0;
+Boolean awt_ModLockIsShiftLock = False;
+
+static int32_t num_buttons = 0;
+int32_t getNumButtons();
+
+extern JavaVM *jvm;
+
+// Tracing level
+static int tracing = 0;
+#ifdef PRINT
+#undef PRINT
+#endif
+#ifdef PRINT2
+#undef PRINT2
+#endif
+
+#define PRINT if (tracing) printf
+#define PRINT2 if (tracing > 1) printf
+
+
+struct ComponentIDs componentIDs;
+
+struct MenuComponentIDs menuComponentIDs;
+
+#ifndef HEADLESS
+
+extern Display* awt_init_Display(JNIEnv *env, jobject this);
+extern void freeNativeStringArray(char **array, long length);
+extern char** stringArrayToNative(JNIEnv *env, jobjectArray array, jsize * ret_length);
+
+struct XFontPeerIDs xFontPeerIDs;
+
+JNIEXPORT void JNICALL
+Java_sun_awt_X11_XFontPeer_initIDs
+ (JNIEnv *env, jclass cls)
+{
+ xFontPeerIDs.xfsname =
+ (*env)->GetFieldID(env, cls, "xfsname", "Ljava/lang/String;");
+}
+#endif /* !HEADLESS */
+
+/* This function gets called from the static initializer for FileDialog.java
+ to initialize the fieldIDs for fields that may be accessed from C */
+
+JNIEXPORT void JNICALL
+Java_java_awt_FileDialog_initIDs
+ (JNIEnv *env, jclass cls)
+{
+
+}
+
+JNIEXPORT void JNICALL
+Java_sun_awt_X11_XToolkit_initIDs
+ (JNIEnv *env, jclass clazz)
+{
+ jfieldID fid = (*env)->GetStaticFieldID(env, clazz, "numLockMask", "I");
+ CHECK_NULL(fid);
+ awt_NumLockMask = (*env)->GetStaticIntField(env, clazz, fid);
+ DTRACE_PRINTLN1("awt_NumLockMask = %u", awt_NumLockMask);
+ fid = (*env)->GetStaticFieldID(env, clazz, "modLockIsShiftLock", "I");
+ CHECK_NULL(fid);
+ awt_ModLockIsShiftLock = (*env)->GetStaticIntField(env, clazz, fid) != 0 ? True : False;
+}
+
+/*
+ * Class: sun_awt_X11_XToolkit
+ * Method: getTrayIconDisplayTimeout
+ * Signature: ()J
+ */
+JNIEXPORT jlong JNICALL Java_sun_awt_X11_XToolkit_getTrayIconDisplayTimeout
+ (JNIEnv *env, jclass clazz)
+{
+#ifndef JAVASE_EMBEDDED
+ return (jlong) 2000;
+#else
+ return (jlong) 10000;
+#endif
+}
+
+/*
+ * Class: sun_awt_X11_XToolkit
+ * Method: getDefaultXColormap
+ * Signature: ()J
+ */
+JNIEXPORT jlong JNICALL Java_sun_awt_X11_XToolkit_getDefaultXColormap
+ (JNIEnv *env, jclass clazz)
+{
+ AwtGraphicsConfigDataPtr defaultConfig =
+ getDefaultConfig(DefaultScreen(awt_display));
+
+ return (jlong) defaultConfig->awt_cmap;
+}
+
+JNIEXPORT jlong JNICALL Java_sun_awt_X11_XToolkit_getDefaultScreenData
+ (JNIEnv *env, jclass clazz)
+{
+ return ptr_to_jlong(getDefaultConfig(DefaultScreen(awt_display)));
+}
+
+
+JNIEXPORT jint JNICALL
+JNI_OnLoad(JavaVM *vm, void *reserved)
+{
+ jvm = vm;
+ return JNI_VERSION_1_2;
+}
+
+/*
+ * Class: sun_awt_X11_XToolkit
+ * Method: nativeLoadSystemColors
+ * Signature: ([I)V
+ */
+JNIEXPORT void JNICALL Java_sun_awt_X11_XToolkit_nativeLoadSystemColors
+ (JNIEnv *env, jobject this, jintArray systemColors)
+{
+ AwtGraphicsConfigDataPtr defaultConfig =
+ getDefaultConfig(DefaultScreen(awt_display));
+ awtJNI_CreateColorData(env, defaultConfig, 1);
+}
+
+JNIEXPORT void JNICALL
+Java_java_awt_Component_initIDs
+ (JNIEnv *env, jclass cls)
+{
+ jclass keyclass = NULL;
+
+
+ componentIDs.x = (*env)->GetFieldID(env, cls, "x", "I");
+ CHECK_NULL(componentIDs.x);
+ componentIDs.y = (*env)->GetFieldID(env, cls, "y", "I");
+ CHECK_NULL(componentIDs.y);
+ componentIDs.width = (*env)->GetFieldID(env, cls, "width", "I");
+ CHECK_NULL(componentIDs.width);
+ componentIDs.height = (*env)->GetFieldID(env, cls, "height", "I");
+ CHECK_NULL(componentIDs.height);
+ componentIDs.isPacked = (*env)->GetFieldID(env, cls, "isPacked", "Z");
+ CHECK_NULL(componentIDs.isPacked);
+ componentIDs.peer =
+ (*env)->GetFieldID(env, cls, "peer", "Ljava/awt/peer/ComponentPeer;");
+ CHECK_NULL(componentIDs.peer);
+ componentIDs.background =
+ (*env)->GetFieldID(env, cls, "background", "Ljava/awt/Color;");
+ CHECK_NULL(componentIDs.background);
+ componentIDs.foreground =
+ (*env)->GetFieldID(env, cls, "foreground", "Ljava/awt/Color;");
+ CHECK_NULL(componentIDs.foreground);
+ componentIDs.graphicsConfig =
+ (*env)->GetFieldID(env, cls, "graphicsConfig",
+ "Ljava/awt/GraphicsConfiguration;");
+ CHECK_NULL(componentIDs.graphicsConfig);
+ componentIDs.name =
+ (*env)->GetFieldID(env, cls, "name", "Ljava/lang/String;");
+ CHECK_NULL(componentIDs.name);
+
+ /* Use _NoClientCode() methods for trusted methods, so that we
+ * know that we are not invoking client code on trusted threads
+ */
+ componentIDs.getParent =
+ (*env)->GetMethodID(env, cls, "getParent_NoClientCode",
+ "()Ljava/awt/Container;");
+ CHECK_NULL(componentIDs.getParent);
+
+ componentIDs.getLocationOnScreen =
+ (*env)->GetMethodID(env, cls, "getLocationOnScreen_NoTreeLock",
+ "()Ljava/awt/Point;");
+ CHECK_NULL(componentIDs.getLocationOnScreen);
+
+ keyclass = (*env)->FindClass(env, "java/awt/event/KeyEvent");
+ CHECK_NULL(keyclass);
+
+ componentIDs.isProxyActive =
+ (*env)->GetFieldID(env, keyclass, "isProxyActive",
+ "Z");
+ CHECK_NULL(componentIDs.isProxyActive);
+
+ componentIDs.appContext =
+ (*env)->GetFieldID(env, cls, "appContext",
+ "Lsun/awt/AppContext;");
+
+ (*env)->DeleteLocalRef(env, keyclass);
+}
+
+
+JNIEXPORT void JNICALL
+Java_java_awt_Container_initIDs
+ (JNIEnv *env, jclass cls)
+{
+
+}
+
+
+JNIEXPORT void JNICALL
+Java_java_awt_Button_initIDs
+ (JNIEnv *env, jclass cls)
+{
+
+}
+
+JNIEXPORT void JNICALL
+Java_java_awt_Scrollbar_initIDs
+ (JNIEnv *env, jclass cls)
+{
+
+}
+
+
+JNIEXPORT void JNICALL
+Java_java_awt_Window_initIDs
+ (JNIEnv *env, jclass cls)
+{
+
+}
+
+JNIEXPORT void JNICALL
+Java_java_awt_Frame_initIDs
+ (JNIEnv *env, jclass cls)
+{
+
+}
+
+
+JNIEXPORT void JNICALL
+Java_java_awt_MenuComponent_initIDs(JNIEnv *env, jclass cls)
+{
+ menuComponentIDs.appContext =
+ (*env)->GetFieldID(env, cls, "appContext", "Lsun/awt/AppContext;");
+}
+
+JNIEXPORT void JNICALL
+Java_java_awt_Cursor_initIDs(JNIEnv *env, jclass cls)
+{
+}
+
+
+JNIEXPORT void JNICALL Java_java_awt_MenuItem_initIDs
+ (JNIEnv *env, jclass cls)
+{
+}
+
+
+JNIEXPORT void JNICALL Java_java_awt_Menu_initIDs
+ (JNIEnv *env, jclass cls)
+{
+}
+
+JNIEXPORT void JNICALL
+Java_java_awt_TextArea_initIDs
+ (JNIEnv *env, jclass cls)
+{
+}
+
+
+JNIEXPORT void JNICALL
+Java_java_awt_Checkbox_initIDs
+ (JNIEnv *env, jclass cls)
+{
+}
+
+
+JNIEXPORT void JNICALL Java_java_awt_ScrollPane_initIDs
+ (JNIEnv *env, jclass cls)
+{
+}
+
+JNIEXPORT void JNICALL
+Java_java_awt_TextField_initIDs
+ (JNIEnv *env, jclass cls)
+{
+}
+
+JNIEXPORT jboolean JNICALL AWTIsHeadless() {
+#ifdef HEADLESS
+ return JNI_TRUE;
+#else
+ return JNI_FALSE;
+#endif
+}
+
+JNIEXPORT void JNICALL Java_java_awt_Dialog_initIDs (JNIEnv *env, jclass cls)
+{
+}
+
+
+/* ========================== Begin poll section ================================ */
+
+// Includes
+
+#include <sys/time.h>
+#include <limits.h>
+#include <locale.h>
+#include <pthread.h>
+
+#include <dlfcn.h>
+#include <fcntl.h>
+
+#include <poll.h>
+#ifndef POLLRDNORM
+#define POLLRDNORM POLLIN
+#endif
+
+// Prototypes
+
+static void waitForEvents(JNIEnv *, jlong);
+static void awt_pipe_init();
+static void processOneEvent(XtInputMask iMask);
+static Boolean performPoll(JNIEnv *, jlong);
+static void wakeUp();
+static void update_poll_timeout(int timeout_control);
+static uint32_t get_poll_timeout(jlong nextTaskTime);
+
+// Defines
+
+#ifndef bzero
+#define bzero(a,b) memset(a, 0, b)
+#endif
+
+#define AWT_POLL_BUFSIZE 100 /* bytes */
+#define AWT_READPIPE (awt_pipe_fds[0])
+#define AWT_WRITEPIPE (awt_pipe_fds[1])
+
+#ifdef JAVASE_EMBEDDED
+ #define DEF_AWT_MAX_POLL_TIMEOUT ((uint32_t)4000000000) /* milliseconds */
+#else
+ #define DEF_AWT_MAX_POLL_TIMEOUT ((uint32_t)500) /* milliseconds */
+#endif
+
+#define DEF_AWT_FLUSH_TIMEOUT ((uint32_t)100) /* milliseconds */
+#define AWT_MIN_POLL_TIMEOUT ((uint32_t)0) /* milliseconds */
+
+#define TIMEOUT_TIMEDOUT 0
+#define TIMEOUT_EVENTS 1
+
+/* awt_poll_alg - AWT Poll Events Aging Algorithms */
+#define AWT_POLL_FALSE 1
+#define AWT_POLL_AGING_SLOW 2
+#define AWT_POLL_AGING_FAST 3
+
+#define AWT_POLL_THRESHOLD 1000 // msec, Block if delay is larger
+#define AWT_POLL_BLOCK -1 // cause poll() block
+
+// Static fields
+
+#ifdef JAVASE_EMBEDDED
+ static int awt_poll_alg = AWT_POLL_AGING_FAST;
+#else
+ static int awt_poll_alg = AWT_POLL_AGING_SLOW;
+#endif
+
+static uint32_t AWT_FLUSH_TIMEOUT = DEF_AWT_FLUSH_TIMEOUT; /* milliseconds */
+static uint32_t AWT_MAX_POLL_TIMEOUT = DEF_AWT_MAX_POLL_TIMEOUT; /* milliseconds */
+static pthread_t awt_MainThread = 0;
+static int32_t awt_pipe_fds[2]; /* fds for wkaeup pipe */
+static Boolean awt_pipe_inited = False; /* make sure pipe is initialized before write */
+static jlong awt_next_flush_time = 0LL; /* 0 == no scheduled flush */
+static jlong awt_last_flush_time = 0LL; /* 0 == no scheduled flush */
+static uint32_t curPollTimeout;
+static struct pollfd pollFds[2];
+static jlong poll_sleep_time = 0LL; // Used for tracing
+static jlong poll_wakeup_time = 0LL; // Used for tracing
+
+// AWT static poll timeout. Zero means "not set", aging algorithm is
+// used. Static poll timeout values higher than 50 cause application
+// look "slow" - they don't respond to user request fast
+// enough. Static poll timeout value less than 10 are usually
+// considered by schedulers as zero, so this might cause unnecessary
+// CPU consumption by Java. The values between 10 - 50 are suggested
+// for single client desktop configurations. For SunRay servers, it
+// is highly recomended to use aging algorithm (set static poll timeout
+// to 0).
+static int32_t static_poll_timeout = 0;
+
+static Bool isMainThread() {
+ return awt_MainThread == pthread_self();
+}
+
+/*
+ * Creates the AWT utility pipe. This pipe exists solely so that
+ * we can cause the main event thread to wake up from a poll() or
+ * select() by writing to this pipe.
+ */
+static void
+awt_pipe_init() {
+
+ if (awt_pipe_inited) {
+ return;
+ }
+
+ if ( pipe ( awt_pipe_fds ) == 0 )
+ {
+ /*
+ ** the write wakes us up from the infinite sleep, which
+ ** then we cause a delay of AWT_FLUSHTIME and then we
+ ** flush.
+ */
+ int32_t flags = 0;
+ /* set the pipe to be non-blocking */
+ flags = fcntl ( AWT_READPIPE, F_GETFL, 0 );
+ fcntl( AWT_READPIPE, F_SETFL, flags | O_NDELAY | O_NONBLOCK );
+ flags = fcntl ( AWT_WRITEPIPE, F_GETFL, 0 );
+ fcntl( AWT_WRITEPIPE, F_SETFL, flags | O_NDELAY | O_NONBLOCK );
+ awt_pipe_inited = True;
+ }
+ else
+ {
+ AWT_READPIPE = -1;
+ AWT_WRITEPIPE = -1;
+ }
+
+
+} /* awt_pipe_init() */
+
+/**
+ * Reads environment variables to initialize timeout fields.
+ */
+static void readEnv() {
+ char * value;
+ int tmp_poll_alg;
+ static Boolean env_read = False;
+ if (env_read) return;
+
+ env_read = True;
+
+ value = getenv("_AWT_MAX_POLL_TIMEOUT");
+ if (value != NULL) {
+ AWT_MAX_POLL_TIMEOUT = atoi(value);
+ if (AWT_MAX_POLL_TIMEOUT == 0) {
+ AWT_MAX_POLL_TIMEOUT = DEF_AWT_MAX_POLL_TIMEOUT;
+ }
+ }
+ curPollTimeout = AWT_MAX_POLL_TIMEOUT/2;
+
+ value = getenv("_AWT_FLUSH_TIMEOUT");
+ if (value != NULL) {
+ AWT_FLUSH_TIMEOUT = atoi(value);
+ if (AWT_FLUSH_TIMEOUT == 0) {
+ AWT_FLUSH_TIMEOUT = DEF_AWT_FLUSH_TIMEOUT;
+ }
+ }
+
+ value = getenv("_AWT_POLL_TRACING");
+ if (value != NULL) {
+ tracing = atoi(value);
+ }
+
+ value = getenv("_AWT_STATIC_POLL_TIMEOUT");
+ if (value != NULL) {
+ static_poll_timeout = atoi(value);
+ }
+ if (static_poll_timeout != 0) {
+ curPollTimeout = static_poll_timeout;
+ }
+
+ // non-blocking poll()
+ value = getenv("_AWT_POLL_ALG");
+ if (value != NULL) {
+ tmp_poll_alg = atoi(value);
+ switch(tmp_poll_alg) {
+ case AWT_POLL_FALSE:
+ case AWT_POLL_AGING_SLOW:
+ case AWT_POLL_AGING_FAST:
+ awt_poll_alg = tmp_poll_alg;
+ break;
+ default:
+ PRINT("Unknown value of _AWT_POLL_ALG, assuming Slow Aging Algorithm by default");
+ awt_poll_alg = AWT_POLL_AGING_SLOW;
+ break;
+ }
+ }
+}
+
+/**
+ * Returns the amount of milliseconds similar to System.currentTimeMillis()
+ */
+static jlong
+awtJNI_TimeMillis(void)
+{
+ struct timeval t;
+
+ gettimeofday(&t, 0);
+
+ return jlong_add(jlong_mul(jint_to_jlong(t.tv_sec), jint_to_jlong(1000)),
+ jint_to_jlong(t.tv_usec / 1000));
+}
+
+/**
+ * Updates curPollTimeout according to the aging algorithm.
+ * @param timeout_control Either TIMEOUT_TIMEDOUT or TIMEOUT_EVENTS
+ */
+static void update_poll_timeout(int timeout_control) {
+ PRINT2("tout: %d\n", timeout_control);
+
+ // If static_poll_timeout is set, curPollTimeout has the fixed value
+ if (static_poll_timeout != 0) return;
+
+ // Update it otherwise
+
+ switch(awt_poll_alg) {
+ case AWT_POLL_AGING_SLOW:
+ if (timeout_control == TIMEOUT_TIMEDOUT) {
+ /* add 1/4 (plus 1, in case the division truncates to 0) */
+ curPollTimeout += ((curPollTimeout>>2) + 1);
+ curPollTimeout = min(AWT_MAX_POLL_TIMEOUT, curPollTimeout);
+ } else if (timeout_control == TIMEOUT_EVENTS) {
+ /* subtract 1/4 (plus 1, in case the division truncates to 0) */
+ curPollTimeout -= ((curPollTimeout>>2) + 1);
+ curPollTimeout = max(AWT_MIN_POLL_TIMEOUT, curPollTimeout);
+ }
+ break;
+ case AWT_POLL_AGING_FAST:
+ if (timeout_control == TIMEOUT_TIMEDOUT) {
+ curPollTimeout += ((curPollTimeout>>2) + 1);
+ curPollTimeout = min(AWT_MAX_POLL_TIMEOUT, curPollTimeout);
+ if((int)curPollTimeout > AWT_POLL_THRESHOLD || (int)curPollTimeout == AWT_POLL_BLOCK)
+ curPollTimeout = AWT_POLL_BLOCK;
+ } else if (timeout_control == TIMEOUT_EVENTS) {
+ curPollTimeout = max(AWT_MIN_POLL_TIMEOUT, 1);
+ }
+ break;
+ }
+}
+
+/*
+ * Gets the best timeout for the next call to poll().
+ *
+ * @param nextTaskTime -1, if there are no tasks; next time when
+ * timeout task needs to be run, in millis(of currentTimeMillis)
+ */
+static uint32_t get_poll_timeout(jlong nextTaskTime)
+{
+ uint32_t ret_timeout;
+ uint32_t timeout;
+ uint32_t taskTimeout;
+ uint32_t flushTimeout;
+
+ jlong curTime = awtJNI_TimeMillis();
+ timeout = curPollTimeout;
+ switch(awt_poll_alg) {
+ case AWT_POLL_AGING_SLOW:
+ case AWT_POLL_AGING_FAST:
+ taskTimeout = (nextTaskTime == -1) ? AWT_MAX_POLL_TIMEOUT : (uint32_t)max(0, (int32_t)(nextTaskTime - curTime));
+ flushTimeout = (awt_next_flush_time > 0) ? (uint32_t)max(0, (int32_t)(awt_next_flush_time - curTime)) : AWT_MAX_POLL_TIMEOUT;
+
+ PRINT2("to: %d, ft: %d, to: %d, tt: %d, mil: %d\n", taskTimeout, flushTimeout, timeout, (int)nextTaskTime, (int)curTime);
+
+ // Adjust timeout to flush_time and task_time
+ ret_timeout = min(flushTimeout, min(taskTimeout, timeout));
+ if((int)curPollTimeout == AWT_POLL_BLOCK)
+ ret_timeout = AWT_POLL_BLOCK;
+ break;
+
+ case AWT_POLL_FALSE:
+ ret_timeout = (nextTaskTime > curTime) ?
+ (nextTaskTime - curTime) :
+ ((nextTaskTime == -1) ? -1 : 0);
+ break;
+ }
+
+ return ret_timeout;
+
+} /* get_poll_timeout() */
+
+/*
+ * Waits for X/Xt events to appear on the pipe. Returns only when
+ * it is likely (but not definite) that there are events waiting to
+ * be processed.
+ *
+ * This routine also flushes the outgoing X queue, when the
+ * awt_next_flush_time has been reached.
+ *
+ * If fdAWTPipe is greater or equal than zero the routine also
+ * checks if there are events pending on the putback queue.
+ */
+void
+waitForEvents(JNIEnv *env, jlong nextTaskTime) {
+ if (performPoll(env, nextTaskTime)
+ && (awt_next_flush_time > 0)
+ && (awtJNI_TimeMillis() >= awt_next_flush_time)) {
+
+ XFlush(awt_display);
+ awt_last_flush_time = awt_next_flush_time;
+ awt_next_flush_time = 0LL;
+ }
+} /* waitForEvents() */
+
+JNIEXPORT void JNICALL Java_sun_awt_X11_XToolkit_waitForEvents (JNIEnv *env, jclass class, jlong nextTaskTime) {
+ waitForEvents(env, nextTaskTime);
+}
+
+JNIEXPORT void JNICALL Java_sun_awt_X11_XToolkit_awt_1toolkit_1init (JNIEnv *env, jclass class) {
+ awt_MainThread = pthread_self();
+
+ awt_pipe_init();
+ readEnv();
+}
+
+JNIEXPORT void JNICALL Java_sun_awt_X11_XToolkit_awt_1output_1flush (JNIEnv *env, jclass class) {
+ awt_output_flush();
+}
+
+JNIEXPORT void JNICALL Java_sun_awt_X11_XToolkit_wakeup_1poll (JNIEnv *env, jclass class) {
+ wakeUp();
+}
+
+/*
+ * Polls both the X pipe and our AWT utility pipe. Returns
+ * when there is data on one of the pipes, or the operation times
+ * out.
+ *
+ * Not all Xt events come across the X pipe (e.g., timers
+ * and alternate inputs), so we must time out every now and
+ * then to check the Xt event queue.
+ *
+ * The fdAWTPipe will be empty when this returns.
+ */
+static Boolean
+performPoll(JNIEnv *env, jlong nextTaskTime) {
+ static Bool pollFdsInited = False;
+ static char read_buf[AWT_POLL_BUFSIZE + 1]; /* dummy buf to empty pipe */
+
+ uint32_t timeout = get_poll_timeout(nextTaskTime);
+ int32_t result;
+
+ if (!pollFdsInited) {
+ pollFds[0].fd = ConnectionNumber(awt_display);
+ pollFds[0].events = POLLRDNORM;
+ pollFds[0].revents = 0;
+
+ pollFds[1].fd = AWT_READPIPE;
+ pollFds[1].events = POLLRDNORM;
+ pollFds[1].revents = 0;
+ pollFdsInited = True;
+ } else {
+ pollFds[0].revents = 0;
+ pollFds[1].revents = 0;
+ }
+
+ AWT_NOFLUSH_UNLOCK();
+
+ /* ACTUALLY DO THE POLL() */
+ if (timeout == 0) {
+ // be sure other threads get a chance
+ if (!awtJNI_ThreadYield(env)) {
+ return FALSE;
+ }
+ }
+
+ if (tracing) poll_sleep_time = awtJNI_TimeMillis();
+ result = poll( pollFds, 2, (int32_t) timeout );
+ if (tracing) poll_wakeup_time = awtJNI_TimeMillis();
+ PRINT("%d of %d, res: %d\n", (int)(poll_wakeup_time-poll_sleep_time), (int)timeout, result);
+
+ AWT_LOCK();
+ if (result == 0) {
+ /* poll() timed out -- update timeout value */
+ update_poll_timeout(TIMEOUT_TIMEDOUT);
+ PRINT2("performPoll(): TIMEOUT_TIMEDOUT curPollTimeout = %d \n", curPollTimeout);
+ }
+ if (pollFds[1].revents) {
+ int count;
+ PRINT("Woke up\n");
+ /* There is data on the AWT pipe - empty it */
+ do {
+ count = read(AWT_READPIPE, read_buf, AWT_POLL_BUFSIZE );
+ } while (count == AWT_POLL_BUFSIZE );
+ PRINT2("performPoll(): data on the AWT pipe: curPollTimeout = %d \n", curPollTimeout);
+ }
+ if (pollFds[0].revents) {
+ // Events in X pipe
+ update_poll_timeout(TIMEOUT_EVENTS);
+ PRINT2("performPoll(): TIMEOUT_EVENTS curPollTimeout = %d \n", curPollTimeout);
+ }
+ return TRUE;
+
+} /* performPoll() */
+
+/**
+ * Schedules next auto-flush event or performs forced flush depending
+ * on the time of the previous flush.
+ */
+void awt_output_flush() {
+ if (awt_next_flush_time == 0) {
+ JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
+
+ jlong curTime = awtJNI_TimeMillis(); // current time
+ jlong l_awt_last_flush_time = awt_last_flush_time; // last time we flushed queue
+ jlong next_flush_time = l_awt_last_flush_time + AWT_FLUSH_TIMEOUT;
+
+ if (curTime >= next_flush_time) {
+ // Enough time passed from last flush
+ PRINT("f1\n");
+ AWT_LOCK();
+ XFlush(awt_display);
+ awt_last_flush_time = curTime;
+ AWT_NOFLUSH_UNLOCK();
+ } else {
+ awt_next_flush_time = next_flush_time;
+ PRINT("f2\n");
+ wakeUp();
+ }
+ }
+}
+
+
+/**
+ * Wakes-up poll() in performPoll
+ */
+static void wakeUp() {
+ static char wakeUp_char = 'p';
+ if (!isMainThread() && awt_pipe_inited) {
+ write ( AWT_WRITEPIPE, &wakeUp_char, 1 );
+ }
+}
+
+
+/* ========================== End poll section ================================= */
+
+/*
+ * Class: java_awt_KeyboardFocusManager
+ * Method: initIDs
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL
+Java_java_awt_KeyboardFocusManager_initIDs
+ (JNIEnv *env, jclass cls)
+{
+}
+
+/*
+ * Class: sun_awt_X11_XToolkit
+ * Method: getEnv
+ * Signature: (Ljava/lang/String;)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_sun_awt_X11_XToolkit_getEnv
+(JNIEnv *env , jclass clazz, jstring key) {
+ char *ptr = NULL;
+ const char *keystr = NULL;
+ jstring ret = NULL;
+
+ keystr = JNU_GetStringPlatformChars(env, key, NULL);
+ if (keystr) {
+ ptr = getenv(keystr);
+ if (ptr) {
+ ret = JNU_NewStringPlatform(env, (const char *) ptr);
+ }
+ JNU_ReleaseStringPlatformChars(env, key, (const char*)keystr);
+ }
+ return ret;
+}
+
+#ifdef __linux__
+void print_stack(void)
+{
+ void *array[10];
+ size_t size;
+ char **strings;
+ size_t i;
+
+ size = backtrace (array, 10);
+ strings = backtrace_symbols (array, size);
+
+ fprintf (stderr, "Obtained %zd stack frames.\n", size);
+
+ for (i = 0; i < size; i++)
+ fprintf (stderr, "%s\n", strings[i]);
+
+ free (strings);
+}
+#endif
+
+Window get_xawt_root_shell(JNIEnv *env) {
+ static jclass classXRootWindow = NULL;
+ static jmethodID methodGetXRootWindow = NULL;
+ static Window xawt_root_shell = None;
+
+ if (xawt_root_shell == None){
+ if (classXRootWindow == NULL){
+ jclass cls_tmp = (*env)->FindClass(env, "sun/awt/X11/XRootWindow");
+ if (!JNU_IsNull(env, cls_tmp)) {
+ classXRootWindow = (jclass)(*env)->NewGlobalRef(env, cls_tmp);
+ (*env)->DeleteLocalRef(env, cls_tmp);
+ }
+ }
+ if( classXRootWindow != NULL) {
+ methodGetXRootWindow = (*env)->GetStaticMethodID(env, classXRootWindow, "getXRootWindow", "()J");
+ }
+ if( classXRootWindow != NULL && methodGetXRootWindow !=NULL ) {
+ xawt_root_shell = (Window) (*env)->CallStaticLongMethod(env, classXRootWindow, methodGetXRootWindow);
+ }
+ if ((*env)->ExceptionCheck(env)) {
+ (*env)->ExceptionDescribe(env);
+ (*env)->ExceptionClear(env);
+ }
+ }
+ return xawt_root_shell;
+}
+
+/*
+ * Old, compatibility, backdoor for DT. This is a different
+ * implementation. It keeps the signature, but acts on
+ * awt_root_shell, not the frame passed as an argument. Note, that
+ * the code that uses the old backdoor doesn't work correctly with
+ * gnome session proxy that checks for WM_COMMAND when the window is
+ * firts mapped, because DT code calls this old backdoor *after* the
+ * frame is shown or it would get NPE with old AWT (previous
+ * implementation of this backdoor) otherwise. Old style session
+ * managers (e.g. CDE) that check WM_COMMAND only during session
+ * checkpoint should work fine, though.
+ *
+ * NB: The function name looks deceptively like a JNI native method
+ * name. It's not! It's just a plain function.
+ */
+
+JNIEXPORT void JNICALL
+Java_sun_awt_motif_XsessionWMcommand(JNIEnv *env, jobject this,
+ jobject frame, jstring jcommand)
+{
+ const char *command;
+ XTextProperty text_prop;
+ char *c[1];
+ int32_t status;
+ Window xawt_root_window;
+
+ AWT_LOCK();
+ xawt_root_window = get_xawt_root_shell(env);
+
+ if ( xawt_root_window == None ) {
+ AWT_UNLOCK();
+ JNU_ThrowNullPointerException(env, "AWT root shell is unrealized");
+ return;
+ }
+
+ command = (char *) JNU_GetStringPlatformChars(env, jcommand, NULL);
+ if (command != NULL) {
+ c[0] = (char *)command;
+ status = XmbTextListToTextProperty(awt_display, c, 1,
+ XStdICCTextStyle, &text_prop);
+
+ if (status == Success || status > 0) {
+ XSetTextProperty(awt_display, xawt_root_window,
+ &text_prop, XA_WM_COMMAND);
+ if (text_prop.value != NULL)
+ XFree(text_prop.value);
+ }
+ JNU_ReleaseStringPlatformChars(env, jcommand, command);
+ }
+ AWT_UNLOCK();
+}
+
+
+/*
+ * New DT backdoor to set WM_COMMAND. New code should use this
+ * backdoor and call it *before* the first frame is shown so that
+ * gnome session proxy can correctly handle it.
+ *
+ * NB: The function name looks deceptively like a JNI native method
+ * name. It's not! It's just a plain function.
+ */
+JNIEXPORT void JNICALL
+Java_sun_awt_motif_XsessionWMcommand_New(JNIEnv *env, jobjectArray jarray)
+{
+ jsize length;
+ char ** array;
+ XTextProperty text_prop;
+ int status;
+ Window xawt_root_window;
+
+ AWT_LOCK();
+ xawt_root_window = get_xawt_root_shell(env);
+
+ if (xawt_root_window == None) {
+ AWT_UNLOCK();
+ JNU_ThrowNullPointerException(env, "AWT root shell is unrealized");
+ return;
+ }
+
+ array = stringArrayToNative(env, jarray, &length);
+
+ if (array != NULL) {
+ status = XmbTextListToTextProperty(awt_display, array, length,
+ XStdICCTextStyle, &text_prop);
+ if (status < 0) {
+ switch (status) {
+ case XNoMemory:
+ JNU_ThrowOutOfMemoryError(env,
+ "XmbTextListToTextProperty: XNoMemory");
+ break;
+ case XLocaleNotSupported:
+ JNU_ThrowInternalError(env,
+ "XmbTextListToTextProperty: XLocaleNotSupported");
+ break;
+ case XConverterNotFound:
+ JNU_ThrowNullPointerException(env,
+ "XmbTextListToTextProperty: XConverterNotFound");
+ break;
+ default:
+ JNU_ThrowInternalError(env,
+ "XmbTextListToTextProperty: unknown error");
+ }
+ } else {
+ XSetTextProperty(awt_display, xawt_root_window,
+ &text_prop, XA_WM_COMMAND);
+ }
+
+ if (text_prop.value != NULL)
+ XFree(text_prop.value);
+
+ freeNativeStringArray(array, length);
+ }
+ AWT_UNLOCK();
+}
+
+/*
+ * Class: java_awt_TrayIcon
+ * Method: initIDs
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_java_awt_TrayIcon_initIDs(JNIEnv *env , jclass clazz)
+{
+}
+
+
+/*
+ * Class: java_awt_Cursor
+ * Method: finalizeImpl
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL
+Java_java_awt_Cursor_finalizeImpl(JNIEnv *env, jclass clazz, jlong pData)
+{
+ Cursor xcursor;
+
+ xcursor = (Cursor)pData;
+ if (xcursor != None) {
+ AWT_LOCK();
+ XFreeCursor(awt_display, xcursor);
+ AWT_UNLOCK();
+ }
+}
+
+
+/*
+ * Class: sun_awt_X11_XToolkit
+ * Method: getNumberOfButtonsImpl
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_sun_awt_X11_XToolkit_getNumberOfButtonsImpl
+(JNIEnv * env, jobject cls){
+ if (num_buttons == 0) {
+ num_buttons = getNumButtons();
+ }
+ return num_buttons;
+}
+
+int32_t getNumButtons() {
+ int32_t major_opcode, first_event, first_error;
+ int32_t xinputAvailable;
+ int32_t numDevices, devIdx, clsIdx;
+ XDeviceInfo* devices;
+ XDeviceInfo* aDevice;
+ XButtonInfo* bInfo;
+ int32_t local_num_buttons = 0;
+
+ /* 4700242:
+ * If XTest is asked to press a non-existant mouse button
+ * (i.e. press Button3 on a system configured with a 2-button mouse),
+ * then a crash may happen. To avoid this, we use the XInput
+ * extension to query for the number of buttons on the XPointer, and check
+ * before calling XTestFakeButtonEvent().
+ */
+ xinputAvailable = XQueryExtension(awt_display, INAME, &major_opcode, &first_event, &first_error);
+ DTRACE_PRINTLN3("RobotPeer: XQueryExtension(XINPUT) returns major_opcode = %d, first_event = %d, first_error = %d",
+ major_opcode, first_event, first_error);
+ if (xinputAvailable) {
+ devices = XListInputDevices(awt_display, &numDevices);
+ for (devIdx = 0; devIdx < numDevices; devIdx++) {
+ aDevice = &(devices[devIdx]);
+#ifdef IsXExtensionPointer
+ if (aDevice->use == IsXExtensionPointer) {
+ for (clsIdx = 0; clsIdx < aDevice->num_classes; clsIdx++) {
+ if (aDevice->inputclassinfo[clsIdx].class == ButtonClass) {
+ bInfo = (XButtonInfo*)(&(aDevice->inputclassinfo[clsIdx]));
+ local_num_buttons = bInfo->num_buttons;
+ DTRACE_PRINTLN1("RobotPeer: XPointer has %d buttons", num_buttons);
+ break;
+ }
+ }
+ break;
+ }
+#endif
+ if (local_num_buttons <= 0 ) {
+ if (aDevice->use == IsXPointer) {
+ for (clsIdx = 0; clsIdx < aDevice->num_classes; clsIdx++) {
+ if (aDevice->inputclassinfo[clsIdx].class == ButtonClass) {
+ bInfo = (XButtonInfo*)(&(aDevice->inputclassinfo[clsIdx]));
+ local_num_buttons = bInfo->num_buttons;
+ DTRACE_PRINTLN1("RobotPeer: XPointer has %d buttons", num_buttons);
+ break;
+ }
+ }
+ break;
+ }
+ }
+ }
+
+ XFreeDeviceList(devices);
+ }
+ else {
+ DTRACE_PRINTLN1("RobotPeer: XINPUT extension is unavailable, assuming %d mouse buttons", num_buttons);
+ }
+ if (local_num_buttons == 0 ) {
+ local_num_buttons = 3;
+ }
+
+ return local_num_buttons;
+}
+
+/*
+ * Class: sun_awt_X11_XWindowPeer
+ * Method: getJvmPID
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_sun_awt_X11_XWindowPeer_getJvmPID
+(JNIEnv *env, jclass cls)
+{
+ /* Return the JVM's PID. */
+ return getpid();
+}
+
+#ifndef HOST_NAME_MAX
+#define HOST_NAME_MAX 1024 /* Overestimated */
+#endif
+
+/*
+ * Class: sun_awt_X11_XWindowPeer
+ * Method: getLocalHostname
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_sun_awt_X11_XWindowPeer_getLocalHostname
+(JNIEnv *env, jclass cls)
+{
+ /* Return the machine's FQDN. */
+ char hostname[HOST_NAME_MAX + 1];
+ if (gethostname(hostname, HOST_NAME_MAX + 1) == 0) {
+ hostname[HOST_NAME_MAX] = '\0';
+ jstring res = (*env)->NewStringUTF(env, hostname);
+ return res;
+ }
+
+ return (jstring)NULL;
+}